If you earn less than $200,000 a year, there’s a strong chance you don’t have to worry about an Internal Revenue Service audit. But if you make more than $1 million annually, the odds have been rising that you’ll be hearing from the tax man.

As FBI and IRS agents investigate Dallas County Commissioner John Wiley Price, legal experts say it always comes down to following the money. FBI agents are looking for any evidence of theft or bribery, money laundering, fraud, and tax evasion.